Prosecutors said they received the file Monday morning to see if the crash warrants additional charges.

Chief Assistant Prosecutor Paul Walton said by email the file is "very thick" and may take some time to review.

Patterson, 73, has undergone three surgeries since the crash that injured him, his driver and two others in a Volkswagen at Opdyke and Walton in Auburn Hills.

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Injured in the Volkswagen were a 31-year-old Royal Oak man, who was treated for minor injuries at McLaren Oakland, and a 51-year-old Fraser man, who was taken to William Beaumont Hospital in Royal Oak.

Oakland County stopped issuing daily updates on Patterson's condition Friday, and Patterson spokesman Bill Mullan said Monday there was nothing new to report since then.

No discharge dates have been set for Patterson, who is recovering at McLaren Oakland hospital in Pontiac, or for Cram, who is at Detroit Receiving Hospital.

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